156 SYMBIOGENESIS 



germ substance) according to the metabolic and bio-economic 

 compatibilities of each case. These gradual and far-reaching 

 bio-dynamic effects must not be left out of consideration any 

 more than the bio-economic effects resulting from the produc- 

 tion of "love-foods," which we have found to be so profoundly 

 significant. 



An example of negative bio-dynamic effects we saw in the 

 case of crossing with "rusty" wheat. Other similar effects 

 seem to be presented by the phenomena of telegony, which, 

 though it is not considered an established fact, is yet believed 

 in by practical breeders. The word Telegony means reproduc- 

 tion influenced by a remote agent, and Sir E. Ray Lankester 

 suggests that the hypothesis that the offspring o! a known sire 

 sometimes inherit characters from a previous mate 

 ("infection") of their dam is not improbable. The same 

 writer states that amongst breeders of horses and dogs the 

 selling value of a dam which has borne young to an inferior 

 sire, or to one of a distinct species, is largely diminished as 

 compared with that of a dam which has been mated only with a 

 first-rate sire of her own breed. Amongst plants the 

 " infection" of the mother by fertilisation, causing the tissue 

 surrounding the germs to grow and to swell up and to form the 

 "love-food," i.e., the seed coats (the pulp and the "rinds") 

 and the fruit, also occurs in the case of the fertilisation of one 

 species by another. 



It is found that if an orange-flower is deliberately fertilised by 

 placing on its pistil the pollen-grains of a lemon-flower, not only are 

 the ovules of the orange fertilised, but the surrounding structures, which 

 enlarge to form the fruit and are parts of the orange-plant quite distinct 

 from the ovules, also become affected by the pollen. 



The same thing has been observed in apples, melons, orchids, rhodo- 

 dendrons, grapes, maize and peas, when one variety has been fertilised 

 by the pollen of another, or when one species has been fertilised by the 

 pollen of an allied but distinct species. The fruit in these cases (not 

 simply the germ the young plant within it) has been found in some 

 instances to have some of the colour, flavour, or shape and marking of 

 the fertilising variety or species blended with that characteristic of the 

 fertilised variety or species. The egg-producing or mother plant not 



